CN104500327B - A kind of axial piston motor - Google Patents
A kind of axial piston motor Download PDFInfo
- Publication number
- CN104500327B CN104500327B CN201410695514.3A CN201410695514A CN104500327B CN 104500327 B CN104500327 B CN 104500327B CN 201410695514 A CN201410695514 A CN 201410695514A CN 104500327 B CN104500327 B CN 104500327B
- Authority
- CN
- China
- Prior art keywords
- pintle
- swash plate
- cylinder body
- axial piston
- plunger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F03C1/0613—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F03C1/0615—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders distributing members
- F03C1/0618—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders distributing members cylindrical distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F03C1/0623—Details, component parts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention belongs to hydraulic transmission technical field, more particularly to a kind of axial piston motor, including housing, cylinder body, power transmission shaft, swash plate, pintle, slippery boots assembly and plunger, the power transmission shaft connects as one structure with the swash plate, the housing is fixedly connected with the cylinder body, the swash plate is arranged at the housing, the pintle is arranged at the cylinder body, the swash plate is fixedly connected with the pintle, the cylinder body is provided with several plunger holes, the contact of incline plane of the slippery boots assembly and the swash plate, the plunger is connected with the slippery boots assembly, the plunger inserts the plunger hole.The present invention unites two into one power transmission shaft and swash plate, so as to realize synchronous rotary, cancels valve plate, using axle flow scheme, overcomes the shortcoming of existing axial piston motor.
Description
Technical field
The invention belongs to hydraulic transmission technical field, more particularly to a kind of axial piston motor.
Background technology
Axial piston motor is the main executing agency of Modern hydraulic high-voltage drive, though the correlation technique of axial piston motor
So it is fairly perfect, but there is also it is many problem of, limit the further lifting of performance.The problem of existing mainly has：
(1) power transmission shaft drive cylinder body rotation, there is the axial force and radial load of unbalance dynamic in work, have influence on motor efficiency and can
By property, mechanical oscillation and noise are also brought；(2) cylinder body and this stress complex to existing between friction pair of valve plate and will
, also there is very high rotary speed in the very high cooperation of refinement degree, it is desirable to very high machining accuracy and material property requirement in work,
It is also the higher position of axial piston motor fault rate, the efficiency and reliability effect to axial piston motor are very big；(3) it is existing
Piston motor is complicated, and the machining accuracy and Geometrical Tolerance Principle to parts are very high, cause axial piston motor antipollution
Ability, cost are high；(4) existing axial piston motor low-speed performance is poor, it is impossible to works, limits in speed operation well
The application scenario of axial piston motor.
Due to the above mentioned problem and very high material and technical requirements of axial piston motor, the country also lacks independent intellectual production
High-end piston motor product almost all in the theoretical system and commodity of power, China market monopolizes for external product, greatly limit
The development of Zhi Liao China axial piston motor industry.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art and a kind of axial piston motor is provided, by power transmission shaft and tiltedly
Disk unites two into one, so as to realize synchronous rotary, cancels valve plate, using axle flow scheme, overcomes existing axial piston motor
Shortcoming.
To achieve the above object, the present invention is adopted the following technical scheme that：A kind of axial piston motor, including housing, cylinder body,
Power transmission shaft, swash plate, pintle, slippery boots assembly and plunger, the power transmission shaft connect as one structure, the housing with the swash plate
Be fixedly connected with the cylinder body, the swash plate is arranged at the housing, the pintle is arranged at the cylinder body, the swash plate and
The pintle is fixedly connected, and the cylinder body is provided with several plunger holes, and the inclined-plane of the slippery boots assembly and the swash plate connects
Touch, the plunger is connected with the slippery boots assembly, the plunger inserts the plunger hole.
The slippery boots assembly includes piston shoes body, return plate, ball pivot and butterfly spring, and the ball pivot is socketed on the flow
Axle, the return plate is connected with the ball pivot, and the return plate is resisted against the piston shoes body, and the piston shoes body is resisted against institute
State the inclined-plane of swash plate, one end of the butterfly spring and the end contact of the cylinder body, the inner face of the other end and the ball pivot
Contact.
The housing is fixedly connected with the cylinder body by elastic cylindrical pin.
The swash plate is fixedly connected with the pintle by flat key.
The pintle is provided with pintle oil inlet and outlet, high-low pressure with chute and relief groove.
The pintle is provided with two oil-through-holes in the axial direction.
The swash plate is by two bearings in the housing.
The bearing is set to taper roll bearing.
The cylinder body is provided with flow axis hole, and described pintle one end is stretched into the flow axis hole.
The cylinder body is provided with motor oil inlet and outlet and motor drain tap.
Beneficial effects of the present invention：(1) structure simplifies, and cylinder body and motor back casing unite two into one, in the absence of unbalance dynamic
Problem, the vibration of generation and noise are smaller；(2) component technological simplifies, low to material performance requirement, it is to avoid first wife flow table with
Somewhat complex design, Precision Machining and the higher material surface processing requirement of requirement between cylinder body；Pintle is matched somebody with somebody using axle and hole
Close, plane or mating spherical surfaces than first wife flow table are easier to ensure that；(3) stress advantages of simple, cylinder body is mainly solely subjected to hydraulic axis
To power and the radial load of plunger transmission, the extra additional force such as no centrifugal force；(4) the overall technological requirement reduction of motor, using knot
The scheme of structure segmentation, it is to avoid dimensional tolerance and form and position tolerance it is accumulative, reduce the requirement on machining accuracy of parts, while
Reduce assembly technology difficulty；(5) length of support is greatly shortened before and after swash plate, with relatively higher rigidity；(6) axle flow,
There is relatively lower linear velocity and simple stress compared with valve plate scheme, optimize friction pair, make influence life-span and efficiency
Friction pair factor is further reduced；(7) higher performance, the stress of optimization and the structure simplified, can further improve motor
Operating pressure；Less leakage path and approach, can further reduce leakage and improve efficiency；(8) higher volumetric efficiency and compared with
Small rotary inertia, is more suitable for the low-speed characteristic of frequency conversion drive.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the cylinder body of the present invention.
Fig. 3 is the structural representation of the swash plate of the present invention.
Fig. 4 is the structural representation of the pintle of the present invention.
Include in Fig. 1 to 4：1 --- housing, 2 --- cylinder body, 21 --- plunger hole, 22 --- flow axis hole, 23 ---
Motor oil inlet and outlet, 24 --- motor drain tap, 3 --- power transmission shaft, 4 --- swash plate, 5 --- pintle, 51 --- pintle
Oil inlet and outlet, 52 --- high-low pressure match somebody with somebody chute, 53 --- relief groove, 54 --- oil-through-hole, 6 --- slippery boots assembly,
61 --- piston shoes body, 62 --- return plate, 63 --- ball pivot, 64 --- butterfly spring, 7 --- plunger, 8 --- elastic cylinder
Pin, 9 --- flat key, 10 --- bearing.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Fig. 1 is seen to Fig. 4, a kind of axial piston motor, including housing 1, cylinder body 2, power transmission shaft 3, swash plate 4, pintle 5, cunning
Boots component 6 and plunger 7, power transmission shaft 3 connect as one structure with swash plate 4, and housing 1 is fixedly connected with cylinder body 2, and swash plate 4 is arranged at
Housing 1, pintle 5 is arranged at cylinder body 2, and swash plate 4 is fixedly connected with pintle 5, and such swash plate 4 and pintle 5 just can be synchronous
It has rotated, cylinder body 2 is provided with several plunger holes 21, the contact of incline plane of slippery boots assembly 6 and swash plate 4, plunger 7 and slippery boots assembly 6
Connection, the insertion plunger hole 21 of plunger 7.When swash plate 4 rotates, slippery boots assembly 6 follows swash plate 4 to rotate, and plunger 7 stretches out plunger hole 21
Length also change therewith, swash plate 4 rotates a circle, and each plunger 4 just completes a stretching motion in the cylinder body 2.
Slippery boots assembly 6 includes piston shoes body 61, return plate 62, ball pivot 63 and butterfly spring 64, and ball pivot 63 is socketed on flow
Axle 5, return plate 62 is connected with ball pivot 63, and return plate 62 is resisted against piston shoes body 61, and piston shoes body 61 is resisted against the oblique of swash plate 4
Face, one end of butterfly spring 64 and the end contact of cylinder body 2, the other end are contacted with the inner face of ball pivot 63.In butterfly spring 64
In the presence of, piston shoes body 61 is pressed on swash plate 4 all the time.
Housing 1 is fixedly connected with cylinder body 2 by elastic cylindrical pin 8, and cylinder body 2 and housing 1 unite two into one, in the absence of dynamic injustice
Weighing apparatus problem, the vibration of generation and noise are smaller.
Swash plate 4 is fixedly connected with pintle 5 by flat key 9.So swash plate 4 and pintle 5 is with regard to synchronous rotary
Pintle 5 is provided with pintle oil inlet and outlet 51, high-low pressure with chute 52 and relief groove 53.Pintle can be made
5 are suspended in cylinder body 2, realize the balance of the radial load of pintle 5.
Pintle 5 is provided with two oil-through-holes 54 in the axial direction.In motor operations, the two oil-through-holes 54 respectively with
The entering of motor, the connection of oil extraction plunger cavity.Due to pintle 5 by flat key 9 as swash plate 4 is rotated together, it is possible to achieve when plunger 7
During stretching, plunger cavity is linked up by an oil-through-hole 54 in pintle 5 and oil-feed；When plunger 7 is pushed back by swash plate 4, plunger
Chamber is linked up by another oil-through-hole 54 in pintle 5 and oil extraction；In the course of work, multiple plungers 7 are acted on similarly hereinafter in swash plate 4
When work, by the coordinated movement of various economic factors of pintle 5, you can realize the continuous work of piston motor.
Swash plate 4 is supported within the case 1 by two bearings 10.Two bearings 10 can ensure the stationarity that swash plate 4 rotates.
It is preferred that, bearing 10 is set to taper roll bearing.
Cylinder body 2 is provided with flow axis hole 22, and the one end of pintle 5 is stretched into flow axis hole 22.
Cylinder body 2 is provided with motor oil inlet and outlet 23 and motor drain tap 24.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in above-mentioned embodiment, every those skilled in the art exist
Made any conspicuously improved, replacement or modification belong to protection scope of the present invention on the basis of the present invention.This
Outside, although having used some specific terms in this specification, these terms merely for convenience of description, not to the present invention
Constitute any limitation.
Claims (9)
1. a kind of axial piston motor, including housing, cylinder body, power transmission shaft, swash plate, pintle, slippery boots assembly and plunger, the biography
Moving axis connects as one structure with the swash plate, it is characterised in that：The housing is fixedly connected with the cylinder body, and the swash plate is set
The housing is placed in, the pintle is arranged at the cylinder body, and the swash plate is fixedly connected with the pintle, and the cylinder body is set
Several plunger holes are equipped with, the contact of incline plane of the slippery boots assembly and the swash plate, the plunger is connected with the slippery boots assembly,
The plunger inserts the plunger hole；The slippery boots assembly includes piston shoes body, return plate, ball pivot and butterfly spring, the ball
Hinge sleeve is connected to the pintle, and the return plate is connected with the ball pivot, and the return plate is resisted against the piston shoes body, described
Piston shoes body is resisted against the inclined-plane of the swash plate, one end of the butterfly spring and the end contact of the cylinder body, the other end with
The inner face contact of the ball pivot.
2. axial piston motor according to claim 1, it is characterised in that：The housing and the cylinder body pass through Elastic Circular
Pin is fixedly connected.
3. axial piston motor according to claim 1, it is characterised in that：The swash plate and the pintle pass through flat key
It is fixedly connected.
4. axial piston motor according to claim 1, it is characterised in that：The pintle is provided with pintle and enters fuel-displaced
Mouth, high-low pressure match somebody with somebody chute and relief groove.
5. axial piston motor according to claim 1, it is characterised in that：The pintle is provided with two in the axial direction
Individual oil-through-hole.
6. axial piston motor according to claim 1, it is characterised in that：The swash plate is by two bearings in institute
State in housing.
7. axial piston motor according to claim 6, it is characterised in that：The bearing is set to taper roll bearing.
8. axial piston motor according to claim 1, it is characterised in that：The cylinder body is provided with flow axis hole, described
Pintle one end is stretched into the flow axis hole.
9. axial piston motor according to claim 1, it is characterised in that：The cylinder body be provided with motor oil inlet and outlet and
Motor drain tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695514.3A CN104500327B (en) | 2014-11-26 | 2014-11-26 | A kind of axial piston motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695514.3A CN104500327B (en) | 2014-11-26 | 2014-11-26 | A kind of axial piston motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500327A CN104500327A (en) | 2015-04-08 |
| CN104500327B true CN104500327B (en) | 2017-08-29 |
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ID=52941765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410695514.3A Active CN104500327B (en) | 2014-11-26 | 2014-11-26 | A kind of axial piston motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104500327B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401863B (en) * | 2016-10-26 | 2019-01-29 | 九江七所精密机电科技有限公司 | A kind of inclined disc type hydraulic plunger motor or pump submerged in water used |
| CN109441750A (en) * | 2018-09-30 | 2019-03-08 | 江苏金陵智造研究院有限公司 | A kind of axial plunger pump |
| CN109989898B (en) * | 2019-05-15 | 2024-06-14 | 梁德荣 | Inclined sealing ring flow distribution mechanism, axial plunger motor and axial plunger pump |
| CN110107447B (en) * | 2019-06-24 | 2024-03-26 | 杭州力龙液压有限公司 | High-low speed switching device, hydraulic motor and excavator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57113976A (en) * | 1980-12-31 | 1982-07-15 | Sumijiyuu Yuatsu Kiki Kk | Hydraulic motor |
| JPS58144672A (en) * | 1982-02-24 | 1983-08-29 | Sumitomo Heavy Ind Ltd | Liquid pressure motor |
| CN1328511C (en) * | 2004-07-17 | 2007-07-25 | 兰州理工大学 | Axial plunger pump for water medium |
| CN101718262B (en) * | 2009-06-29 | 2011-08-31 | 重庆红江机械有限责任公司 | Multifunctional stepless variable-flow high-pressure oil feed pump |
| CN201531383U (en) * | 2009-08-18 | 2010-07-21 | 江苏欧盛液压科技有限公司 | Swash plate type axial piston pump |
| CN102135082B (en) * | 2011-03-29 | 2012-07-04 | 华中科技大学 | Piston pump of dual-inclined-disc hydraulic motor |
| CN202732256U (en) * | 2012-05-03 | 2013-02-13 | 邵阳伊顿贝克液压有限责任公司 | Valve flow distribution plunger pump |
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2014
- 2014-11-26 CN CN201410695514.3A patent/CN104500327B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104500327A (en) | 2015-04-08 |
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